Device for cleaning cisterns



(No Model.)

W. J. MALTBY & A. BELCHER. Y DEVICE PoR 'CLEANING CISTERNS, sw. No. 477,908.

Patonted June 2'8, 1892,.

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i I i UNITED STATE-s PATENT QFFIQ WILLIAM JAMES MALTBYY-AND ALEXANDER BELCHER, OF NEW ORLEANS,

Y LOUISIANA.

DEvlcE FfoR'cLI-:ANING CISTERNS, sbc.

SPECIFICATION forming part of Letters Patent No. 477,908, dated June 28, 1892. Application filed November 24, 1891. Serial No. 412,993. (No model.)

to the accompanying drawings, which form al part of this specification.

Our invention relates to improvements in means for removing' sediment from cisterns, Water-tanks, and other similar receptacles.

In certain portions of the country, as is Well' known, the sole supply of water for drinking and cooking purposes is that furnished by rain, which is led from the roofs of houses .and other buildings to reservoirs or cisterns and stored for future use. This Water contains much foreign matter and impurities, which are carried with it to the cistern, Where it is precipitated and accumulates in the form of sediment, which has to be frequently removed in order to render the water tit for household purposes.

The object of our invention is to provide improved means whereby the sedimentis collected and removed from the cistern without drawing off or agitating the water therein.

The invention consists in the novel construction and combination of parts hereinafter fully described -and claimed.

In the accompanying drawings, Figure l is a sectional view of a cistern constructed according to our invention. Fig. 2 is a similar view showing a modilication of the same.

In the said drawings, the reference-numeral 1 designates a cistern or reservoir of any ordinary construction. In the lower part of this cistern is located a conical vessel 2, having an open bottom. This vessel discharges into a similar but smallervessel 5, connected with the vessel 2 by means of arms 6. At its bottom vessel' is provided with a pipe '7, having cock 8, by which the sediment which collects in said vessel may be drawn off.

' Located within the cistern and connected and communicating with the pipe 7 is the short leg 10 of a siphon. This leg extends up to near the top of the cistern, Where it is bent and extended-downwardly outside of and below the bottom of the cistern,` forming a long leg l2. Near its upper end the leg 10 is provided with a hole or aperture 9.

The operation will be readily understood.

VThen the water in the cistern rises above the 6o bend in the siphon, the Water and sediment will be carried from the vessel or basin 5 out through the Siphon, the fiow being continuous until the level below the hole 9 is reached,

when air will enter through said hole and the flow will cease.

When the Water-level is not sufficient to operate the Siphon, the sediment may be drawn off by means of the cock.

Having thus described our invention, what 7o we claim is-i The combination, with a reservoir or cistern, of the conical Vessels 2 and 5, the pipe 7, connected with the lower vessel and provided with astop-cock, and the sipbon conneet-ed With said pipe, provided with a hole or aperture, substantiallyas and for the purpose specified. y

In testimony that We claim the foregoing as our own We have hereunto affixed our signa- 8 0 tures in presence of two witnesses.

WILLIAM JAMES MALTBY. ALEXANDER yBELCl-IER.v Witnesses:

WILLIAM W. SUTCLIFFE, JNO. M. Coos. 

